Wrong live tile for Outlook Calender

I'm in Windows Phone 10 latest build. Live tile of my Outlook calendar is getting wrongly updated. Inside the calendar it's showing properly. Problem is with the birthdays of Facebook contacts. Please update if anyone have same issue & how to resolve it.

It looks like this is the same problem described in http://answers.microsoft.com/en-us/m...15133ee?page=1
It is an almost 3 years old problem and , for me, it shows up ONLY if you have a 'full day' event into the calendars. And I suppose a Facebook birthday is a full day event.